Sample language for Grandfathered Plan Status: Click HereA Grandfathered (GF) health plan is one that was in effect on March 23, 2010, and has continuously covered at least one person since that time. Any reduction in benefits or increase in costs to the enrollees will cause the plan to lose GF status (with few exceptions). Ask your insurance carrier or agent if your plan is GF. If your plan is GF, you must include a notification in the plan materials that a plan is GF and must provide contact information for questions.